randomizing timestamp without timezone in postgresql

Question

Is there any way to randomize a timestamp without timezone with an interval of within 1hour? For example:

event_start = '2019-10-31 13:00:00'
event_end = '2019-10-31 14:00:00'

but can also be

event_start = '2019-10-31 13:00:00'
event_end = '2019-10-31 13:40:59'

Answer 1

you can add a random number of minutes to your timestamp:

timestamp '2019-10-31 13:00:00' + make_interval(mins => (random() * 59)::int)